FaSTTUBe/ams-master
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make SPI reads/writes a interrupt-free

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This commit is contained in:
Kilian Bracher 2025-05-26 14:26:47 +02:00
parent f910f899a4
commit 468ba1d7e7
Signed by: k.bracher
SSH Key Fingerprint: SHA256:mXpyZkK7RDiJ7qeHCKJX108woM0cl5TrCvNBJASu6lM
1 changed files with 28 additions and 6 deletions
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34
AMS_Master_Code/Core/Lib/ADBMS6830B_Driver/Inc/ADBMS_Intern.h
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@ -13,6 +13,16 @@ typedef enum {
ADBMS_TIMEOUT,
} ADBMS_Internal_Status;
#define CRITICAL_SECTION_VAR(counter) bool primask_##counter = (__get_PRIMASK() == 0)
#define CRITICAL_SECTION_ENTER(counter) do { __disable_irq(); } while(0)
#define CRITICAL_SECTION_EXIT(counter) ({do { if (primask_##counter) __enable_irq(); } while(0);})
#define CRITICAL_SECTION() \
CRITICAL_SECTION_VAR(__COUNTER__); \
asm volatile ("dmb"); \
CRITICAL_SECTION_ENTER(__COUNTER__); \
for(int _cs_flag_##__COUNTER__ = 1; _cs_flag_##__COUNTER__; _cs_flag_##__COUNTER__ = 0, CRITICAL_SECTION_EXIT(__COUNTER__))
[[maybe_unused, gnu::always_inline]]
static inline void mcuAdbmsCSLow() {
HAL_GPIO_WritePin(AMS_CS_GPIO_Port, AMS_CS_Pin, GPIO_PIN_RESET);
@ -29,20 +39,32 @@ static inline void mcuAdbmsCSHigh() {
[[maybe_unused, gnu::always_inline, gnu::access(read_only, 2, 3), gnu::nonnull(1)]]
static inline ADBMS_Internal_Status mcuSPITransmit(USER_PTR_TYPE user_ptr, const uint8_t* buffer, uint8_t buffersize, uint32_t timeout) {
const HAL_StatusTypeDef status = HAL_SPI_Transmit(user_ptr, buffer, buffersize, timeout);
return (status == HAL_OK) ? ADBMS_OK : ADBMS_ERROR;
ADBMS_Internal_Status adbms_status;
CRITICAL_SECTION() {
const HAL_StatusTypeDef status = HAL_SPI_Transmit(user_ptr, buffer, buffersize, timeout);
adbms_status = (status == HAL_OK) ? ADBMS_OK : ADBMS_ERROR;
}
return adbms_status;
}
[[maybe_unused, gnu::always_inline, gnu::access(read_write, 2, 3), gnu::nonnull(1)]]
static inline ADBMS_Internal_Status mcuSPIReceive(USER_PTR_TYPE user_ptr, uint8_t* buffer, uint8_t buffersize, uint32_t timeout) {
const HAL_StatusTypeDef status = HAL_SPI_Receive(user_ptr, buffer, buffersize, timeout);
return (status == HAL_OK) ? ADBMS_OK : ADBMS_ERROR;
ADBMS_Internal_Status adbms_status;
CRITICAL_SECTION() {
const HAL_StatusTypeDef status = HAL_SPI_Receive(user_ptr, buffer, buffersize, timeout);
adbms_status = (status == HAL_OK) ? ADBMS_OK : ADBMS_ERROR;
}
return adbms_status;
}
[[maybe_unused, gnu::always_inline, gnu::access(read_write, 2, 4), gnu::access(read_only, 3, 4), gnu::nonnull(1, 2)]]
static inline ADBMS_Internal_Status mcuSPITransmitReceive(USER_PTR_TYPE user_ptr, uint8_t* rxbuffer, const uint8_t* txbuffer, uint8_t buffersize, uint32_t timeout) {
const HAL_StatusTypeDef status = HAL_SPI_TransmitReceive(user_ptr, txbuffer, rxbuffer, buffersize, timeout);
return (status == HAL_OK) ? ADBMS_OK : ADBMS_ERROR;
ADBMS_Internal_Status adbms_status;
CRITICAL_SECTION() {
const HAL_StatusTypeDef status = HAL_SPI_TransmitReceive(user_ptr, txbuffer, rxbuffer, buffersize, timeout);
adbms_status = (status == HAL_OK) ? ADBMS_OK : ADBMS_ERROR;
}
return adbms_status;
}
// Delay by `delay` milliseconds